Name

Synopsis

void blk_queue_bounce_limit (

struct request_queue * q,

u64 max_addr);

Arguments

q

the request queue for the device

max_addr

the maximum address the device can handle

Description

Different hardware can have different requirements as to what pages
it can do I/O directly to. A low level driver can call
blk_queue_bounce_limit to have lower memory pages allocated as bounce
buffers for doing I/O to pages residing above max_addr.